Continuous-wire-drawing machine.



C. D. JOHNSON AND F. W. LODDING.

CONTINUOUS WIRE DRAWING MACHINE.

APPLICATION FILED l1196.16. |918.

Patent-ed Nov. 25, 1919.

2 SHEETS-SHEET l.

t l l l C. D. JOHNSON ANDQF. W. LODDING.-

K CONTINUOUS WIRE DRAWING MACHINE.

APPLICATION FILED AUGJG.. 1918.

1,322,904. Patented Nov. 25, 1919.

2 SHEETS-SHEET 2.

`useful Continuous-Wire-Drawii STATES PATENT FFCE.

' CHARLES D. Jonusoivnnn FREDERICK w. LODDING, 0E WORCESTER,MASSACHUSETTS.

CONTINUOUS-WIRE-DRAWING MACHINE.

nseaeor.,

Specication of Letters Patent.

Application led August 16, 1918. Y Serial No. 250,228.

To all whom t may concern.'

Be it known that we, CHARLES D. JOHN- son, a citizen of the UnitedlStates, and FREDERICK W. LODDING, a subject of the King of Norway, bothresiding at Worcester, in the county of Worcester andJ State ofMassachusetts, have invented a new and Machine, of which the followingis a speci cation.

This invention relates to a wire drawing machine of the continuous type,and the principal objects thereof are to so arrange the parts of themachine as to concentrate them into a smaller space than has beenpossible heretofore; to provide a construction in which the wire can bedrawn through a part only of the dies whendesired, in a most convenientmanner without necessitating any changes Lin themachine or in its speedof operation, and'at the saine time permitting of the throwing out ofgear of the parts of the machine not required without in any wayinterfering'with the reduction of the diameter of the wire; and toprovide for changing'the speed of the winding drum in a simple mannerwithout interfering with the rest of the machine.

Reference is lto be had to theV accompanying drawings in which- Figure 1is a plan of a preferred embodiment of this invention;

Fig. 2 is a front elevation;

Fig. 3 is a sectional view on the line 3 3 of Fig. 2 showing the drivingmechanism in plan, and

Fig. 4 is a sectional view on the line li-e `of Fig. l.

As ordinarily constructed wire ldrawing machines of the continuous typecomprise a series of dies arranged in alinement and a series offorwarding rolls or cylinders around which the wire passes arranged onebetween each two dies as is'A well understood. A machine of this kindtakes `up considerable room on account of its length, and by our newarrangement we succeed in reducing the length very materially andincrease the width only to a comparatively slight degree. It may be saidthat for a machine of the particular size shown the length is reduced toa third and the width only about doubled thus materially economizing inspace. On the old type of machines also when all the dies are to be usedno special difficulty is encountered7 but when only a part of them areto be used the wire has to i tering of the wire as it passes through thef dies. According to our invention this chattering is substantiallyeliminated andthe wire is passed through the dies in a smooth, uniformand accurate condition by providing a fine easily regulatable adjustmentfor the speed of the winding drum without altering the speed of theforwarding rolls.

Referring now to the drawings it will be .seen that the machineis shownas comprising a cast metal base 10 on which is a cast iron tank 11 inwhich are. located dies 12 and 13, the numeral 12 indicating the seriesof dies around the tank for receiving the wire from and passing it tothe several forwarding rolls, and the numeral 13 the finishing die whichVin the normal machine is always located in the same place, but in thismachine may be placed at any desired point in the tank around the centerthereof.

We have shown the machine as driven from tight and loose pulleys 14 on adriving shaft 15. This shaft is provided with three bevel gears 16operating three bevelgears 17 on the bottoms of three shafts 18. Theshaft l5 is also Vshown as provided with a spur Y gear 19 which drives aseries of spur gears r20, all shown as of equal pitch diameter. Two ofthese spur gears 20 drive parallel shafts`21and 22. The Shaft 22 drivesthree upright shafts 18 by the same'means as the shaft 15, and the shaft21 drives two of them, so that there are altogether eight of theseupright shafts 18.

Each of these shafts carries a forwarding roll 25 at the top located inthe tank. the shafts passing up through babbitted bearings 26 in thebottom of the tank. It will be understood from consideration of thesizes of therbevel gears that the various shafts 18 run at differentspeeds. The first drum #l is the slowest one, and the others Nos. 2, 3,4, 5, 6, 7 and 8 are speeded up to higher Patented Nov. 25, 1919.,

speeds in the necessary proportion as is the V.case with the usualcontinuous drawing mills. .But in this case there is a central Yshaft 30mounted in'bearings on a frame 3l whichv is part 4of the main frame` l()and also in a babbitted bearing in the bottom of the tank 11.v AThiscarries a winding drum 32 rotating on an elevated center 33 of the tank.

This winding drum is ofthe usual chi'iracter7V and need not be describedin detail but` it constitutes a center about which the forwarding drumsare located -in the form Y shown. The essential point however is thatthey are not located in alinement witheach other or with the windingdrum but .are at nearly equal distances Y from the Winding drum andgrouped aroundl it. As shown they form the sides of a hollow square.

The shaft at the .bottom is provided with4 aspring Bton the bottom ofthe frame 31 pressing on a disk 35 which is keyed to the shaft. On theshaft 21 is a driving friction disk 3 6 slidingly keyed to it andprovided with means not shown for sliding it along the' shaft. Thespring 341 holds the disk down in contact with it. It will be seentherefore that the speed of the shaft can be regulated within finelimits and in avery simple manner.-

The location of the several forwarding drums 1, 2, 3, 4 5, 6, 7 and 8around the i the wire through a die. 40

Awinding drum 32 is an important feature of this invention. 'Wheninvordina'ry'oper- Y'ation the wire is to Vbe drawn through Vnine dies12 and'l'allthe rollsare employed and the wire passes from the reel 39.to the roll No. 1 through a die 12 andtlien in turn around all therolls, each of which draws From the roll 8 lthe wire. passes to theYwinding drum V32.

We have shown the wire,however, passing from the roll6 directly to thewinding drum through the finishing die 13 in order to illustrate howeasy it isto drop fout two of the dies and forwardingV rolls withoutinterfering with the operation of the Ina- V 'chine in'anyway. It is tobe understood,

of course, that the finishing die 13 isplaced around the drum in anyYdesired position to permit of securing Jthis result. The constructionby which this is provided for con# sists simply ina series of slots 4Qin Va sta:

aixed ourV signatures.

ftionarypartof'the tank inany one of which the die 13 can be fastened bya bolt.

Although we have illustrated and described only a single form of theinvention We are aware of the fact vthat many 4*modi- .fications y'canbe made therein by any person skilled in the art without departing fromthe scope of the invention as expressed in the claims. lTherefore-we donot ywish to be limited to allthe details of construction herein shownand described, but what we do claim is Y 1 .Y 1. In. awire drawingmachine,{the comforwarding` rolls','all of the sameV Vsize,' and diesarranged on different. sides of the winding drum inthe form of a squarewiththree rolls on each side, a finishing die adapted to be placedbetween the winding drum and different ones lof the forwarding rolls,gear` ing positively connecting said rolls' together to vrotate atdifferent speeds, means for driv-V ing the winding drum from saidgearing,

. bination with a winding drum, ofa set of and means Afor minutelyvarying the speedVV l' of the winding drum independently of theV speedofthe forwarding rolls.v v v 2. In a wirefdrawing machine, thecombination with a winding drum, Vof a set of 'forwarding rolls all ofthe same size,V and diesk all arranged near the winding drum,

and means `wherebya finishing die can be placed between the Vwindingdrum` and .any

one of the forwarding rolls, so that the .wire may be passed fromany ofthe rolls directly to the winding drum and finished without interferingwith the other rolls or changing the way of entering the chine. Y Y 1 3.In a wire drawingmachine, the combination with a winding drum, of a` setofv the speed of the winding drum'.

wire: into the ma- In testimony whereof we haverv hereunto .Y

CHARLES D. JoHNsoN. i'

FREDERICK w. LoDDiNG.-

